Congratulations on your new rifle! Be warned that customizing and accessorizing black rifles is an addictive hobby.

Is it an A2-style fixed stock? The stock is easy to remove and there are a ton of replacement options. Here are just a few:

https://www.primaryarms.com/AR15_Sto...how=100&page=1

Here's a quick video on how to remove the A2 stock. You'll need a specific wrench for the castle nut.